brooks



A. T.1BR0OKS.-

Door Bell.

Patented June 30, 1868.

M4 PETERS. FHO

ASA T. BROOKS, OF NEW BRITAIN,gC'ONNECT-IGUT Letters Patent No. 79,308, dated June 30, 1868 IMPROVEMENT IN DOOR-BELLS.

flit: fitignulmitmh tr iltjlltfit new new mitmating part at flgt same TO ALL WHOM IT MAY CONCERN:

Be it known that, I, ASA T; BROOKS, of New Britain, county of Hartford, and State of Connecticut, have invented certain new and useful Improvements in the Manufacture of Gail-Bells; and to enable others skilled in the art to make and use the same, I will proceed to describe its construction-and operat on, by referring to the drawings, in which the same letters indicate like parts in each of the figures.

The nature of this invention will be understood from the specification and drawings.

In the accompanying drawings-- Figure 1 is a face view of the mechanism arranged upon the fastening-plates, with the bell removed, which, when in place, is secured to the stud c by a screw, 0, and covers the mechanism from view. I

Figure 2 is' a view of a portion of the mechanism, showing how it (the mechanism) is actuated by. a pull or spindle working in a line at right angle with the fastening-plate.

b is the fastening-plate, to which the mechanism is secured. a is a stud, to which the bell is secured in the usual way. :1 is an arm, which aetuates the hammer, secured and oscillated upon a stud-pin, c. This arm (1 is provided with a V-shaped projection, f. The hammer is made on or secured by its arm, h, to the arm d, at 2', (orother desirable point.) z is a coil-spring, secured upon the stud-pin e, one end-of which bears against the stud a, and the other against the hammer-arm. la is an actuating-arm, secured by its hub between the plates 5 and m, or upon a stud-pin, 'n. o is a coil-spring, secured upon the hub of the arm'k, the extended ends of which cross and pass by the side of a stump, nformed on or near the outer end of the arm k, and take their bearings, one on one side, and the other on opposite side of the's'tud q, thus producing a double action of the springupon the arm 7:. The hub of this arm is also provided with an orifice, for the reception of the erank or knob-spindle a, by which it is actuated. The actuating-arm It is secured upon a stud-pin, n, and is reacted and held in a fixed position for action by a coil-spring, a, secured upon the pin at, one arm of which rests against a stump, s, -upon the arm k, and the other against the stump t. Upon these arms I; k are arranged one or more vibrating tripcams it, which act against, first, one side, then the other of the V-shape projoctionf, on-the arms at, the result of which is to produce a do'uble and an accelerated action of the hammer each pull or vibration of the spindler is an angular crank or lever, suspended, or has its oscillating bearing on a pin, a, which is secured in or near the body of the bell-stud a. One prong of said angle-level 11" extends down, and takes bearing against the side ofxthe arm is. The otherend, w, is made -shape, and in one or two parts, so that it may-pass through a slit in the pull-spindle, or so that the pull-spindle may pass between the two parts, and the pad 2; take its hear. ing upon the A -shape formation 20, so that, when the knob-spindle is pulled, the pad 2: will act upon the Asshape end 1/) of the angle-lever, and through the arm 2);

Arm 7c aetuates the hammer, and causcsit to make two strokes eaehpull'of the knob.

Each of the lovers]; k is provided with an eye, in which to secure a wire, ru'nningin a direction parallel with the platef, for thepurposeof forming a connection with the pull-spindle. i

Thus I am enabled to produce a quick, double, easy, and distinct action, by one turn to the" right or left, or one pull of the knob or vibratory crank, either in a line at right angle, or paralleF'with the plate 6.

I believe I have thus shown the nature, construction, and advantage of this invention, so as to enable others skilled in the art to make and use-the same therefrom.

What I claim, therefore, and desire to secure by Letters Patent, is

' 1. An oscillating-arm, k, andvibratory cam u, secured and oscillating both uponthe same stud-pin 71,

in combination with the arms 01 1:, substantially as described. i

2. In combination with the above, the angle lever v, oscillating upon-tho pin a, all arranged and operating substantially as and for the purpose described.

ASA T. BROOKS.

Witnesses:

N. C. WILDER, JEREMY W. Buss. 

